P1

Basic quantities

The three fundamental quantities measured in physics are length, mass, and time.

Length

The measurement of distance, typically measured in meters (m).

Decimeter (dm)

A unit of length equal to 10^-1 meters.

Centimeter (cm)

A unit of length equal to 10^-2 meters.

Millimeter (mm)

A unit of length equal to 10^-3 meters.

Kilometer (km)

A larger unit of length equal to 10^3 meters (approximately 5/8 mile).

Area

The measurement of the size of a surface, calculated by multiplying length and breadth.

Volume

The measurement of the amount of space occupied by an object, typically measured in cubic meters (m^3).

Liter

A unit of volume equal to 1000 cubic centimeters (cm^3) or 1 cubic decimeter (dm^3).

Milliliter (ml)

A unit of volume equal to 1 cubic centimeter (cm^3).

Time

The measurement of the duration of events, with the unit of time being the second (s).